[jira] [Commented] (NIFI-4375) Add bufferSize processor configuration to PutFTP

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/NIFI-4375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16160784#comment-16160784 ] 

ASF GitHub Bot commented on NIFI-4375:
--------------------------------------

GitHub user ijokarumawak opened a pull request:

    https://github.com/apache/nifi/pull/2142

    NIFI-4375: Add bufferSize to PutFTP

    The default buffer size is only 1kb and causes low data transfer rate.
    Added buffer size configuration so that user can specify appropriate value.
    
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You can merge this pull request into a Git repository by running:

    $ git pull https://github.com/ijokarumawak/nifi nifi-4375

Alternatively you can review and apply these changes as the patch at:

    https://github.com/apache/nifi/pull/2142.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

    This closes #2142
    
----
commit 2c5ebc3fe060a36434a11df5602776f999aac893
Author: Koji Kawamura <ij...@apache.org>
Date:   2017-09-11T06:19:24Z

    NIFI-4375: Add bufferSize to PutFTP
    
    The default buffer size is only 1kb and causes low data transfer rate.
    Added buffer size configuration so that user can specify appropriate value.

----


> Add bufferSize processor configuration to PutFTP
> ------------------------------------------------
>
>                 Key: NIFI-4375
>                 URL: https://issues.apache.org/jira/browse/NIFI-4375
>             Project: Apache NiFi
>          Issue Type: Improvement
>          Components: Extensions
>            Reporter: Koji Kawamura
>            Assignee: Koji Kawamura
>
> PufFTP is reported that it is significantly slower to transfer the same file compared with mput command.
> https://mail-archives.apache.org/mod_mbox/nifi-users/201709.mbox/%3CCA+WJ-+Kqr6_uJfvewOA6akmUDCEVse+7wNm6Xq9AHwFwVj_2kg@mail.gmail.com%3E
> It is less performant because it does not set buffer size of underlying org.apache.commons.net.ftp.FTPClient. The default buffer size is only 1KB.
> Setting larger buffer size improves transfer rate.
> {code}
> To send 10MB file
> # BufferSize = 1KB (default)
> about 8 sec
> # BufferSize = 16KB
> about 300 ms
> {code}
> PutFTP should provide a property to specify a buffer size, and default value should be bigger.



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